The conversion factor
1 fluid ounces (US) equals 29.5735 milliliters. Multiply your fluid ounces (US) value by 29.5735 to get milliliters; divide to go back. For the reverse direction, use the milliliters to fluid ounces (US) converter or the full volume converter.
Where this conversion comes up
Mixing metric and imperial is a daily reality in travel, shipping, recipes, fitness apps, and spec sheets — this page gives the exact factor plus a scannable table for the values people actually need.